Detachable rim.



N0. 897,630. PATENTED SEPT. l, 1908.

l R. KRONENBERG.

DETAGHABLE RIB/L APPLICATION FILED: DEG. n1. 190m No. 897,630. PATENTED SEPT. l, 1908r v R. KRONENBERG.

DETAGHABLE RIM..

APPLICATION FILED DEC.21,1907.

Z SHEB'IS-SHEBT 2.

y? 'll/23510,

RUDOLF KRONENBERG, Ol" OHLIGS, GERMANY.

DETACHABLE RIM.

Specication of Letters Patent.

Patented Sept. 1, 1908.

Application filed December 21. 1907. Serial No. l07,462.

To all whom. it may concern.'

Be it known that l, Ri'nom innomin- BERG, a subject of the King ol Prussian German Emperor, residing at Ohligs-on-the- Rhine, in the Province ol the Rhine, Kingdom of Prussia, German Empire, have invented a certain new and usel'ul Detachable Rim, of which thel following is a specilication. f

This invention relates to a rim for pneumatic tires removable from the body ol the .wheel According to this invention there are arranged upon the ends ol the spokes supporting blocks which serve to support eccentrically-shaped and revoluble rollers. These rollers are provided with sloping surfaces s0 that alter they have revolved lSOO a distent'ion ol'v the pneumatic tube rim is ell'ected in a convenient manner. 'l`here should therel'ore be in the working condition a iirln connection olI the rim with the body ol" the wheel.

"In the drawing there are illustrated in Figures l to S various eonstruetional forms of the removable rim.. Fig. .1 shows the rim in elevation and the spoke and the other parts in section. Fig. 2 shows the same parts at right angles thereto i. e. the rim, bearing and spoke in cross-section and the roller .bolt in elevation. Fig. 3 is a similar view to Fig. l showing a slight modiication, and Fig. 4 like Fig. 2 shows the parts at right angles. Fig. 5 shows a device in which the lateral retaining means for the rim are modilled. vliig. 6 shows in side elevation a dill'erent mode olE securing the bearings on the spokes, links connecting the saine a'nd means to lock the roller bolts. F ig. 7 shows inend elevation partly in section and `Fig. S in side elevation part of a Wheel embodying the invention.

rlhe rolls d securing the separation between the pneumatic tire rim (L and thel spokes are supported in suitable. blocks c which are placed upon the spoke ends. As shown in Figs- .l to 5 the blocks e are inserted by means ol' proper-,tions c into the hollow 'spoke ends,YV

according to Figs. to t? theI connection is ell'ected by moans oli shoes placed on the. bearing blocks e, in which shoes the ends ol the spokes are inserted. ln case of need the blocks, or also the spoke, ends themselves, may be connected together by means of jointed rods j, in order to secure a greater stillness oll the wheel body.

The rollers l shown in Figs. l to 6 are supported eccentrically, in order to secure as powerful a tension as possible upon the. rini 1. in the working condition. In Figs. 7 and S this eccentrieity of the bearing is dispensed with, which can be done without injury if the parts in contact with one another are carefully shaped. lt is neferable, however, to form these rollers as s own in Figs. 7 and. b', namely, to novide them at the oints of contact with the rim with a slight attening so that on the turning of the rollers the rim. will be powerfully stretched and in consequence ol its elasticity will lie ilrm'ly compressed upon the 'llat parts in the working position.

For the prevention of a lateral displacement ol' the pneumatic tire rim, the rollers are provided with suitable eccentric projections either at the end or the rollers or in the middle ol the same, which engage corresponding cavities of the rim or clamp projections o'l the same between them. when in the working position. ln Figs. l, 2, 6 to 8, are indicated for this purpose the plates g upon the inner side of the rim, which serve as support for end projections or heads of the ro lers, according to Figs. 3 to 5 there are eut in the rim itseli' cavities, into which corres )onding eccentric projections, preferably in the middle of the rollers may enter.

ln order to secure' the roll against motion during the operation, various means may be applied. Thus, in addition to the above already mentioned llatteningv et the rolls, the eccentric part may be provlofledI as shown in Fig. l, with a tangential projection h, which in consequence ot the elasticity of the rim, prevents any undesired turning during use. Further, as shown in Fig. 6 (right side), the rollers can be prevented from participating in any undesired turning by means oi suitable pins t. .ln lFig. 6 (left side) there is i'urther' shown in what manner the creeping of the pneumatic tire rim a over the spo ces can be prevented, namely, by the arrangement that at one point the attached plates g of the u )per rim are provided with projections k which engage over the bearing locks of the rolls ln order to be. able to remove the rim from the wheel body, the eccentric parts of the locking members 'which lie towardthe outside ot the wheel and project, are llattened at one mint as shown in the drawing, se that turn- .mg the rolls from the Working position by 180, the rim Without further operation can be Withdrawn over the rolls in the axial direction. In this manner any exertion on the removal of the rim is completely avoided, because after turning the rolls there is provided already a sufficient space between the parts to be separated.

Havin now particularly described and-ascertaine the nature of my said invention and in What'manner the same is to be performed, I declare that what I claim is:

' 1. A rim for vehicle Wheels, bearings engaging the Spokes of the wheels and provided with openings, and a transverse locking member engagingsaid openings and plo vided `with an eccentric rim.

2. A rim for Vehicle Wheels7 bearings engaging the spokes of the Wheels, transverse locking members having eccentric parts for engaging the rim, means for preventing lateral movement of the rim on the bearings, and means for connecting said bearings.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses. l

RUDOLF KRONENBERG.

WOLDEMAR 'HAUPT ARTHUR ScHioEDER.

part engaging the 

